diff --git a/.github/workflows/auto_test.yml b/.github/workflows/auto_test.yml
index 0dbaea3..c10f85e 100644
--- a/.github/workflows/auto_test.yml
+++ b/.github/workflows/auto_test.yml
@@ -17,7 +17,7 @@ jobs:
         python-version: ["3.14-dev", "3.13", "3.12", "3.11", "3.10"]
 
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v5
     - name: Set up Python ${{ matrix.python-version }}
       uses: actions/setup-python@v5
       with:
diff --git a/.github/workflows/build_zipapp.yml b/.github/workflows/build_zipapp.yml
index 52b82ec..de1d4d5 100644
--- a/.github/workflows/build_zipapp.yml
+++ b/.github/workflows/build_zipapp.yml
@@ -11,7 +11,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v5
     - name: Set up Python
       uses: actions/setup-python@v5
       with:
diff --git a/.github/workflows/publish_to_pypi.yml b/.github/workflows/publish_to_pypi.yml
index d255c1e..cea2f88 100644
--- a/.github/workflows/publish_to_pypi.yml
+++ b/.github/workflows/publish_to_pypi.yml
@@ -10,7 +10,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v5
     - name: Set up Python
       uses: actions/setup-python@v5
       with:
diff --git a/.github/workflows/publish_to_testpypi.yml b/.github/workflows/publish_to_testpypi.yml
index e7843a9..241d1c3 100644
--- a/.github/workflows/publish_to_testpypi.yml
+++ b/.github/workflows/publish_to_testpypi.yml
@@ -11,7 +11,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v5
     - name: Set up Python
       uses: actions/setup-python@v5
       with: